Anyone who's watched Keeping Up With The Kardashians knows the family can be quite protective over their only brother Rob.
So it was only a matter of time before the reality star's new girlfriend, London singer Rita Ora was subjected to a grilling from his family.
In the British capital for various promotional work, Kim and rapper boyfriend Kanye West, 34, took time out of their busy schedule to share a cosy dinner with her brother and his girlfriend.
Long-distance lovers: Rob Kardashian (right) has flown to London to spend time with his girlfriend Rita Ora
After pre-recording an appearance on Alan Carr's Chatty Man, the 31-year-old headed to Zuma Japanese restaurant in Knightsbridge.
Following their meal, Kim and Rita, 21, got to know each other during a girlie chat, while Rob, 25, was occupied with a male friend.
Meanwhile, Kanye and Jay-Z were spotted making an exit soon after the meal, living the rest of the group to chat.
Girlie gossip: At one point, Rita pulls her chair closer to Kim so they can chat properly
Getting to know you: Kim chats to Rita after dinner at Zuma after Kanye has left
It appeared Rita and Rob may have gone on elsewhere after they were pictured arriving back at their London hotel at 1am this morning.
Kim arrived in London on Wednesday morning and has a busy few days before heading back to the U.S.
On Friday, she will launch her new fragrance True Reflection in Debenhams on Oxford Street and promote the QuickTrim weight management product in Westfield shopping mall on Saturday.
Curves on show: Kim has put on quite the fashion show since arriving in London, see right at Radio 1 today, and left leaving her central London hotel yesterday afternoon
Cheer up! Kim Kardashian and Kanye West look glum as they arrived at the Zuma restaurant in Knightsbridge, London for dinner
Also in town: Jay-Z joined the gang for dinner ahead of his gig with Kanye on Friday night
Meanwhile, her boyfriend Kanye will be taking to the stage with Jay-Z for London leg of their Watch The Throne tour tomorrow night.
Rob and Rita have been romantically linked since the end of last year, with the reality star only confirming their relationship on Twitter last weekend.
When she scored the No.1 single in the UK charts with R.I.P., he tweeted: 'You did it. I love you and you're my wife.'
He then retweeted a photo of her holding a celebratory chocolate champagne bottle with her single in icing, saying: 'That's MY baby.'
He continued his profession of love for the singer by tweeting: 'But I LOVE MY WOMAN! I'm so proud of You!'
Accompanying Rob and Kim on the trip to the UK is E! camera crews for their reality show.
The footage will be part of the seventh season of ‘Keeping Up With The Kardashians’, which premieres in the US next week.
The look of love: Rita and Rob share a moment
Larking around: Earlier on Wednesday, Kim recorded an episode of Alan Carr Chatty Man